Classification
000 - Computer science, information & general works
330 - Economics
4
333 - Economics of land & energy
4
363 - Other social problems & services
4
700 - The arts; fine & decorative arts
600 - Technology
3
400 - Language
2
620 - Engineering & allied operations
2
900 - History & geography
2
320 - Political science
1
380 - Commerce, communications & transportation
1
410 - Linguistics
1
551 - Geology, hydrology & meteorology
1
610 - Medicine & health
1
720 - Architecture
1
800 - Literature & rhetoric
1